lt170chevelle

iTrader: (2)

i have a 94 lt1 thats been in my daily driver for years now. ive been noticing a lack of power and kinda surging when getting into the pedal . today it just started to have a really delayed throttle response and if you 3\4 gas it from idle in park it backfires alittle bit.and like i said a very noticable hesitation when revving it up. almost like if the timing was retarded. it idles fine and drives fine but when playing with the gas or revving it up its definitely sickly. please help..anybody.. is this a possible opti prob?

95FbFormula

iTrader: (25)

possible the opti??

95FbFormula

iTrader: (25)

are you running the full harness and pcm for it to possible have it scanned for codes.

LT1 Guy

Check spark plugs and wires.

lt170chevelle

iTrader: (2)

yeah its got the full harness but ive been having a problem pulling codes.and the plugs are good no missing just seems to be stumbling when revved

lt170chevelle

iTrader: (2)

also its a 94 z28 setup and ive never been able to pull any codes..anybody have any ideas on that matter? would be nice to see whats going on

koolaid_kid

iTrader: (21)

Check your fuel pressure. Could be a faulty fuel pressure regulator. Happened to me this summer. Just a thought.

the_merv

iTrader: (88)

Fuel Pump going, clogged Fuel Filter, clogging Cat..

lt170chevelle

iTrader: (2)

i have no cats, filter was changed last year...but definitely a good possibility. i will try checking the fuel system out.